Chevrolet Silverado, K2XX (USA / CAN)

AdBlue (DEF) capacity & service interval

Chevrolet Silverado, K2XX (USA / CAN) uses AdBlue (DEF) with a capacity of 20,1 liters. The data covers 2 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
Silverado HD 6.6 Duramax V8 DPF (2014-2016)
  • Use: Normal
  • Capacity 20,1 liter
Silverado HD 6.6 Duramax V8 DPF AWD (2014-2016)
  • Use: Normal
  • Capacity 20,1 liter

Additional Notes

  • The Chevrolet Silverado HD 6.6 Duramax V8 DPF carries a DEF tank capacity of 20.1 liters, a figure that reflects a dedicated reservoir sized to support extended operation between refills in a heavy-duty diesel application.
  • Both the standard drivetrain and AWD configurations of the 6.6 Duramax V8 DPF share an identical 20.1-liter DEF capacity across the 2014-2016 model years, meaning drivetrain layout has no bearing on tank size in either variant.
  • The 20.1-liter figure is associated with normal use conditions, which in fluid service terminology refers to operation outside of elevated-stress or high-demand duty cycles.
  • DEF capacity in this context is tied to the exhaust aftertreatment system, specifically the selective catalytic reduction (SCR) circuit that consumes diesel exhaust fluid to reduce nitrogen oxide emissions in the 6.6 Duramax's exhaust stream.

Other Systems